Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between HIMAWARI-9 and NOAA-21 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 3/22/2025
Index Date Time (HIMAWARI-9) HIMAWARI-9 Lat,Lon NOAA-21 Lat,Lon Distance(km) Time Diff (sec)
1 03/23/2025 16:09:59 0.03, 140.77 0.38, 139.19 179.98 80
2 03/24/2025 15:48:33 0.03, 140.77 -0.63, 143.73 336.78 80
3 03/26/2025 04:10:29 -0.03, 140.77 -0.57, 138.43 266.84 80
4 03/27/2025 03:54:23 -0.03, 140.76 0.45, 142.96 250.63 80
5 03/28/2025 16:16:09 0.04, 140.75 0.70, 137.69 347.50 80
6 03/29/2025 15:54:44 0.03, 140.74 -0.33, 142.22 170.18 80
7 03/31/2025 04:16:38 -0.03, 140.73 -0.89, 136.93 432.51 80
8 04/01/2025 04:00:33 -0.03, 140.71 0.15, 141.46 85.57 80
9 04/03/2025 16:00:53 0.03, 140.68 0.00, 140.73 6.97 80

Figure of HIMAWARI-9 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 3/22/2025
SNOs_Map_HIMAWARI-9_NOAA-21_20250323.jpg

Download SNOs between HIMAWARI-9 and NOAA-21 since TLE EPOCH: 03/22/2025 in txt file.

Historical Predications of SNOs between HIMAWARI-9 and NOAA-21